I love it when my usually imperturbable colleague Jim Fallows gets pissed off, as he does in a stellar post on birtherism:

Here we have a wonderful real-world test: if "actual knowledge" mattered, the number of people who thought Obama was foreign-born would approach zero by next week -- with exceptions for illiterates, the mentally disabled, paranoid schizophrenics, etc. My guess is that the figures will barely change.

Read the whole thing. I do feel quite strongly that a serious press would cease to quote Donald Trump on this subject, as well as on many other subjects.